.header {
    height: 150px;
    position: relative;
    position: sticky;
    top: -80px;
    background: white;
    z-index: 2;
}

.header img {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 40px;
}

.header .nav {
    position: absolute;
    bottom: 23px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

.header .nav li {
    float: left;
    margin-right: 50px;
}

.header .nav li:nth-of-type(1) {
    margin-left: 33px;
}

.header .nav li:hover {
    color: gray;
}

.header .header-list {
    position: absolute;
    right: 12px;
    top: 15px;
}

.header .header-list li {
    float: left;
    margin-right: 10px;
    cursor: pointer;
}

.header .header-list li span {
    font-size: 22px;
}

#box1 {
    width: 100%;
    height: 450px;
    border-top: 2px solid gray;
    position: relative;
    display: none;
    left: 0;
    top: 70px;
    z-index: 2;
    position: sticky;
    background: white;
}

.box1-content {
    width: 900px;
    position: absolute;
    left: 50%;
    height: 450px;
    transform: translateX(-50%);
}

.box1-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 23px;
}

.box1-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box1 .box1-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box1 img {
    width: 300px;
    height: 180px;
    position: absolute;
    left: 50%;
    transform: translateX(-60%);
    bottom: 60px;
}

#box2 {
    position: relative;
    height: 300px;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 2;
}

#box2 .box2-content {
    height: 300px;
    position: absolute;
    width: 1100px;
    left: 50%;
    transform: translateX(-50%);
}

#box2 .box2-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 60px;
}

#box2 .box2-content ul:nth-of-type(1) {
    margin-left: 65px;
}

#box2 .box2-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box2 .box2-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box3 {
    position: relative;
    height: 250px;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 2;
}

.box3-content {
    position: absolute;
    height: 250px;
    width: 1000px;
    left: 50%;
    transform: translateX(-50%);
}

#box3 .box3-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 67px;
}

#box3 .box3-content ul:nth-of-type(1) {
    margin-left: 100px;
}

#box3 .box3-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box3 .box3-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box4 {
    height: 280px;
    position: relative;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 2;
}

#box4 .box4-content {
    position: absolute;
    height: 280px;
    width: 1100px;
    left: 50%;
    transform: translateX(-50%);
}

#box4 .box4-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 60px;
}

#box4 .box4-content ul:nth-of-type(1) {
    margin-left: 170px;
}

#box4 .box4-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box4 .box4-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box4 .box4-content img {
    width: 170px;
    height: 220px;
    margin-top: 30px;
    margin-right: 2px;
}

#box5 {
    height: 280px;
    position: relative;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 2;
}

#box5 .box5-content {
    height: 280px;
    width: 1000px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    overflow: hidden;
}

#box5 .box5-content .txt {
    width: 200px;
    height: 70px;
    margin-top: 30px;
    margin-left: 200px;
}

#box5 .box5-content .txt span {
    margin-right: 50px;
    display: inline-block;
}

#box5 .box5-content img {
    width: 335px;
    height: 220px;
    margin-right: 250px;
    margin-top: -70px;
    float: right;
}

.key {
    height: 428px;
    background: #ebeae5;
    position: relative;
    top: 0;
    left: 0;
    overflow: hidden;
    cursor: pointer;
}

.key .key-content {
    width: 1215px;
    height: 380px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border: 3px solid #d85a1c;
}

.key-content img {
    width: 165px;
    height: 150px;
    position: absolute;
    top: 26px;
    left: 50%;
    transform: translateX(-50%);
}

.key-content .time {
    width: 350px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 180px;
    font-size: 50px;
    font-weight: bold;
    color: #d85a1c;
    font-family: serif;
    text-align: center;
}

.key-content .time span {
    display: inline-block;
    width: 50px;
}

.key .key-content .title {
    font-size: 14px;
    position: absolute;
    width: 200px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: #d85a1c;
    top: 235px;
}

.key .key-content .title span {
    position: absolute;
}

.key .key-content .title span:nth-of-type(1) {
    left: -50px;
}

.key .key-content .title span:nth-of-type(2) {
    left: 95px;
}

.key .key-content .title span:nth-of-type(3) {
    right: -60px;
}

.key .key-content p:nth-of-type(1) {
    text-align: center;
    color: #d85a1c;
    margin-top: 250px;
}

.key .key-content p:nth-of-type(2) {
    text-align: center;
    font-size: 14px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: #d85a1c;
    width: 70px;
    padding-bottom: 3px;
    margin-top: 20px;
    letter-spacing: 3px;
    border-bottom: 1px solid #d85a1c;
}

.key .key-content p:nth-of-type(2):hover {
    color: gray;
    border-bottom: 1px solid gray;
}

.series {
    height: 200px;
}

.series .series-content {
    width: 1000px;
    height: 250px;
    margin: auto;
    text-align: center;
    font-family: "宋体";
    padding: 50px 0;
}

.series .series-content h2 {
    font-weight: 150;
    font-size: 50px;
}

.series .series-content p {
    font-size: 18px;
    margin-top: 20px;
}

.series .series-content span {
    display: inline-block;
    width: 125px;
    border-bottom: 1px solid black;
    letter-spacing: 2px;
    margin-top: 20px;
    padding-bottom: 2px;
    cursor: pointer;
}

.series .series-content span:hover {
    color: gray;
    opacity: .8;
    border-bottom: 1px solid gray;
}

.bg {
    width: 1080px;
    height: 900px;
    margin: auto;
    background: url(../img/bg.jpg) no-repeat center;
}

.eng {
    width: 1080px;
    margin: auto;
}

.eng p {
    font-family: serif;
    font-weight: 580;
    font-size: 20px;
    margin-top: 6px;
}

.method {
    height: 400px;
    margin-top: 100px;
}

.method .method-content {
    width: 900px;
    height: 400px;
    margin: auto;
    text-align: center;
}

.method .method-content h2 {
    font-family: "宋体";
    font-size: 50px;
    font-weight: normal;
}

.method .method-content ul {
    margin-top: 40px;
}

.method-content ul li {
    width: 215px;
    height: 235px;
    float: left;
    margin-right: 5px;
}

.method-content ul li:nth-of-type(1) {
    margin-left: 10px;
}

.method-content ul li img {
    width: 215px;
    height: 235px;
    cursor: pointer;
}

.method-content ul li p {
    font-family: "楷体";
    font-weight: bold;
    margin-top: 15px;
    border-bottom: 1px solid black;
    padding-bottom: 3px;
    cursor: pointer;
}

.method-content ul li p:hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.package {
    height: 550px;
    margin-top: 140px;
}

.package .package-content {
    width: 1080px;
    height: 550px;
    margin: auto;
    position: relative;
}

.package .package-content img {
    position: absolute;
    width: 530px;
    height: 550px;
    left: 0;
    top: 0;
}

.package .package-content .package-title {
    width: 550px;
    height: 550px;
    text-align: center;
    position: absolute;
    right: 0;
    top: 0;
}

.package-content .package-title h2 {
    font-size: 50px;
    font-family: "宋体";
    font-weight: normal;
    margin-top: 200px;
}

.package-content .package-title p {
    width: 150px;
    font-family: "楷书";
    letter-spacing: 2px;
    margin-top: 35px;
    margin-left: 180px;
    border-bottom: 1px solid black;
    cursor: pointer;
}

.package-content .package-title p:hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.hot {
    height: 672px;
    margin-top: 180px;
}

.hot .hot-content {
    width: 1080px;
    height: 672px;
    margin: auto;
    text-align: center;
}

.hot .hot-content h2 {
    font-size: 50px;
    font-family: "宋体";
    font-weight: normal;
}

.hot .hot-content span {
    display: inline-block;
    text-align: center;
    width: 130px;
    font-size: 15px;
    letter-spacing: 5px;
    border-bottom: 1px solid black;
    margin-top: 50px;
    cursor: pointer;
}

.hot .hot-content span:hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.hot .hot-content span:nth-of-type(1) {
    margin-right: 50px;
}

.hot .hot-content ul {
    margin-top: 55px;
}

.hot .hot-content ul li {
    width: 350px;
    height: 486px;
    float: left;
    margin-right: 10px;
    background: #f2f2f2;
}

.hot-content ul li img {
    width: 350px;
    height: 440px;
}

.hot-content ul li p {
    border-bottom: 1px solid black;
    font-size: 15px;
    font-family: "宋体";
    letter-spacing: 3px;
    width: 115px;
    padding-bottom: 2px;
    cursor: pointer;
    margin-left: 116px;
}

.hot-content ul li p:hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.read {
    height: 450px;
}

.read .read-content {
    height: 450px;
    width: 1080px;
    margin: 220px auto;
    text-align: center;
}

.read .read-content h2 {
    font-size: 50px;
    font-family: "宋体";
    font-weight: normal;
}

.read .read-content .read-title {
    height: 390px;
    width: 540px;
    float: left;
}

.read .read-content .read-title p:nth-of-type(1) {
    width: 250px;
    font-size: 25px;
    font-family: "宋体";
    margin-left: 130px;
    margin-top: 110px;
    margin-bottom: 25px;
}

.read .read-content .read-title p:nth-of-type(2),
.read .read-content .read-title p:nth-of-type(3) {
    width: 165px;
    font-size: 15px;
    font-family: "楷体";
    border-bottom: 1px solid black;
    margin-left: 163px;
    margin-bottom: 20px;
    letter-spacing: 3px;
    padding-bottom: 2px;
    cursor: pointer;
}

.read .read-content .read-title p:nth-of-type(2):hover,
.read .read-content .read-title p:nth-of-type(3):hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.read .read-content .read-right {
    float: right;
    height: 392px;
    width: 539px;
}

.read .read-content .read-right img {
    height: 392px;
    width: 539px;
}

.coach {
    height: 400px;
}

.coach .coach-content {
    height: 400px;
    width: 1080px;
    margin: 90px auto;
}

.coach .coach-content .coach-left {
    width: 540px;
    float: left;
}

.coach .coach-content .coach-left img {
    height: 400px;
}

.coach .coach-content .coach-title {
    width: 540px;
    height: 400px;
    float: right;
    text-align: center;
}

.coach .coach-content .coach-title img {
    width: 540px;
    height: 50px;
    margin-top: 110px;
}

.coach-content .coach-title p:nth-of-type(1) {
    font-family: "宋体";
    font-size: 20px;
    margin-top: 5px;
    margin-bottom: 25px;
}

.coach-content .coach-title p:nth-of-type(2),
.coach-content .coach-title p:nth-of-type(3) {
    font-size: 14px;
    letter-spacing: 3px;
    width: 110px;
    font-family: "楷书";
    border-bottom: 1px solid black;
    margin-left: 190px;
    margin-bottom: 15px;
    cursor: pointer;
}

.coach-content .coach-title p:nth-of-type(2):hover,
.coach-content .coach-title p:nth-of-type(3):hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

.selShop {
    height: 380px;
}

.selShop .selShop-content {
    width: 1080px;
    height: 380px;
    margin: 80px auto;
}

.selShop .selShop-content .selShop-title {
    width: 540px;
    height: 380px;
    float: left;
    text-align: center;
}

.selShop .selShop-content .selShop-right {
    float: right;
    width: 540px;
    height: 380px;
}

.selShop .selShop-content .selShop-right img {
    height: 380px;
    width: 540px;
}

.selShop-content .selShop-title p:nth-of-type(1) {
    font-size: 25px;
    font-family: "宋体";
    margin-top: 120px;
}

.selShop-content .selShop-title p:nth-of-type(2) {
    width: 112px;
    font-family: "楷体";
    letter-spacing: 2px;
    border-bottom: 1px solid black;
    cursor: pointer;
    margin-left: 190px;
    margin-top: 25px;
}

.selShop-content .selShop-title p:nth-of-type(2):hover {
    color: gray;
    border-bottom: 1px solid gray;
    opacity: .8;
}

h4 {
    text-align: center;
    font-size: 20px;
    margin-top: 130px;
    font-weight: normal;
}

.server {
    height: 745px;
    background: #ebebeb;
}

.server .server-content {
    height: 592px;
    width: 880px;
    margin: 20px auto;
    text-align: center;
    overflow: hidden;
    padding-left: 12px;
}

.server .server-content h2 {
    font-weight: normal;
    font-family: "宋体";
    font-size: 34px;
    margin-top: 50px;
    letter-spacing: 2px;
}

.server .server-content dl {
    width: 197px;
    height: 250px;
    text-align: center;
    float: left;
    margin-right: 20px;
    margin-bottom: 2px;
    cursor: pointer;
    padding-top: 65px;
}

.server .server-content dl dt {
    width: 197px;
    height: 40px;
}

.server-content dl dt img {
    width: 40px;
    height: 40px;
}

.server .server-content dl dd:nth-of-type(1) {
    margin-top: 20px;
    margin-bottom: 10px;
}

.server .server-content dl dd:nth-of-type(2),
.server .server-content dl dd:nth-of-type(3) {
    font-size: 13px;
}

.server .server-content dl dd:nth-of-type(4) {
    margin-top: 20px;
    width: 65px;
    margin-left: 65px;
    border-bottom: 1px solid black;
}

.footer {
    height: 530px;
    border-top: 1px solid gray;
}

.footer .footer-content {
    height: 420px;
    width: 1120px;
    margin: auto;
}

.footer-top ul img {
    width: 90px;
    height: 90px;
}

.footer-content .footer-top ul {
    float: left;
    margin-top: 95px;
    margin-right: 78px;
}

.footer-content .footer-top ul li {
    font-size: 14px;
    margin-bottom: 15px;
}

.footer-content .footer-top ul li:nth-of-type(1) {
    font-weight: bold;
    margin-bottom: 40px;
}

.footer-content .footer-top ul:nth-of-type(4) li:nth-of-type(4) {
    margin-top: 10px;
}

.footer-content .footer-top ul:nth-of-type(5) {
    margin-right: 0;
    margin-left: 50px;
}

.footer-top ul:nth-of-type(5) li:nth-of-type(4),
.footer-top ul:nth-of-type(5) li:nth-of-type(5) {
    font-size: 13px;
    color: #919090;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(5) {
    margin-top: -10px;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(6) {
    width: 200px;
    height: 48px;
    background: black;
    color: white;
    cursor: pointer;
    text-align: center;
    line-height: 48px;
    margin-top: 50px;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(6) u {
    text-decoration: underline;
}

.footer .footer-bottom {
    height: 110px;
    width: 1120px;
    margin: auto;
    text-align: center;
    font-size: 13px;
    color: gray;
}

.footer .footer-bottom img {
    width: 18px;
    height: 18px;
}

.footer .footer-bottom p:nth-of-type(2) {
    margin-bottom: 6px;
}

.fix {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    position: fixed;
    bottom: 120px;
    right: 26px;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.9);
}

.fix span {
    display: block;
    font-size: 25px;
    color: white;
    text-align: center;
    line-height: 35px;
}